Vaporizer



' w. c. KOCH July 21, 1931.-

VAPORI ZER 2 Sheets-Sheet 1 Filed March 1, 1928 gwuentoz 74zz7lz'amazacz/ W. C. KOCH VAPORI ZER July 21, 1931.

1 2 Sheets-Sheet 2 Filed March 1, 1928 .111110; Wzrzwmmraa Patented July21, 1931 warren STATES arse-a r .orr cs ILLIAM-swa ruse Mmrrsom vea m arPaliee ier are use .2%- a ca s- This invention relates to improved meansthe common immersion typehaving a gooseii'or supplying the air in theroom of a neck (handle 15 projecting above the'iliquid patient W-ithvaporized medicants for treatin which it :is immersed." Suitableconnech1ent through the respiratory organs. tions iorelectric currentwires 16 (Fig. It ismy object to provide asirnple and inare provided onabranch 17 of the handle enpensivedevice of this kind adapted to opwhichprojects lfrom an end of theiboi ler erate for long periods O'fJtlmGwith safety To transmit'iliquidfrom the reservoir 6 and.Withoutrequiring-an attendant or a-ttento the boi-ler 1 11 provide arigid L sha-ped tion {of any kind, and at the same timeempipecommunicating with the bottom of 10 ploy a small-boiler and heating unitadapted the reservoir, flexible tubes 19 and .20 con- :60 to rapidlyvaporize liquid and 1n:inimize the nected by a coupling '21 and a rigidvertical time required to initially bring the liquid pipe22comnmnicating with the bottom of in the boiler toboilingtemperature..the boiler 11. This vertical pip 22 is 'Other objects are to facilitatecleaning-the larger size than the other connections and 5' device afteruse and to reduce the cost of :has va.later-ally projecting nipple 23adapted 65 the device'by eliminating all valves. The .to receive one end.oat' thefieiible tube :20. invention also includes certain other novelA removable cap 24.011 its low er end is .arfeatures of constructionwhich will be more rangedto .facilitate cleaning the pipe 22. fullypointedlou t in the following .specifica- The rigid coupling 21 ismerely a" straight v tion and claims. section of small pipe fittingsnugly into the the accompanying drawings Figure l ends oi the flexibletubes 1 9 and 20. Secured is a'plan view' of my device with the connearthe ends of the tubes 19 and-20 adjacent nections between the boiler andreservoir to .the coupling 2:1;are-hooks .2-5 and :26 re- :broken oropenedfor separation ofthe boiler speotively adapted to. engage.theupper edges and reservoir; Fig. 2 is a vertical sectionofithe,reservoirfiand boiler lllasiliereinadfter 1 taken.onitheline22.of Fig. =1, but showing described. Aremovable extension, .27, openthe" connections completed as in operation; atitstop.and1bottom,isadaptedito be mount- Fig. 3 :is adetail perspective view of .the ed .onthe .top of the boiler 11 to prevent removable boiler extension; 'Fig. 4is a side splashingwhen the liquid contentsare agi- 3 view of the deviceand Fig. 51's a fragmentatedas byviolentboilingl {This extension?! tanysection taken .011 th :1ine5 5 fiFig. 1. is formed to fit snugly intothe 170.1) of the As shownin the drawings, 11 provide a iboialer'and'hasatone end anotch28 arranged reservoir 6 for Water or other liquid. This-to receive the handle 15. reservoir has .an open top and is elevated Inuse, assuming that the device is assemsuitable legs '7. The legs arepreferably bled as shown in Figs. :2 and 4, the reservoir diornied fromheavy gauge :wire bent to form and boiler are charged with liquid andthe horizontal foot po1ition's 8 (Fig. .2 and atheating element 14placed in operation so .as Ita'ching portions 9 on their upperends which.to heat the contents ofthe boiler. The liquid are removably inserted insockets 10 secured is quicklybrought to a boil and as it .is va to theibottomlof the-reservoir 6. A zboiler porizedis replaced by water (orother liquid) 11 having an open top is supported upon one from thereservoir 6. The flow is by gravity side of the reservoir 6 being formedwith a through the connections 18, 19, 20, 21', QQYand flange 12 alongone upper edge. As best 23 into the :bottomf of the boiler. Obviouslyshown in Figs: 1 and 5 (the flange 1:2 is bent the iliquid issubstantially .uponthe samedevinto hook shapetoengage the upper edge ofel .the boiler as :in the reservoir when the the reservoir 6.'llheboiler 11 is formed apparatus is started. Starting with an equalwith .a roundedjbottom -13 projecting somelevel inthe two vessels, .thislevel is reduced what below the bottom of the reservoir ..6. by boilinglin'the boilen and after reduction 'ilVit-hin the bottom of. thereservoir para has taken place, the level is reestablished by 50 to.place an electric [heating element -ll'of fgraivity flow. 0n account ofthe lighter weight of the hot water, and, furthermore, on account of thebubble content of same, the water stands slightly higher in the boilerthan it does in the reservoir and yet flows from the reservoir to theboiler.

Flow of liquid from the boiler back into the reservoir is prevented bymy arrangement of piping. Thus as the water is heated in the bottom ofthe boiler and is vaporized it is replaced by a rising column of coolwater in the pipe 22. F low in the reverse direction is preventedbecause as the liquid is vaporized and driven off from the top of theboiler a continuous flow toward the boiler through the connections withthe reservoir is maintained and the hot water will not flow down throughthe colder water in the pipe 22. By my arrangement of pipes, I form whatmay be termed a cold water seal for the connection between the reservoirand boiler. This is an important feature of my invention. If medicantfrom the boiler 11 were transmitted back through the connections intothe reservoir stoppage of the connections and fouling of the reservoirwould be apt to result. I have found that stoppage of the connectionsand fouling of the reservoir is particularly troublesome where av thickor gummy medicant, such as benzoin, is used in the boiler. A quantity ofsuch a medicant is commonly placed in a relatively large volume of waterso that with my device pure water is supplied to the reservoir and themedicant in the boiler cannot reach the reservoir or small connections.To further insure against the stoppage of the small connections betweenthe boiler and reservoir I provide the upright receiver and connectingnipple 23 located substantially below the bottom of the boiler. Thereceiver pipe 22 is sufficiently large to insure against stoppage evenwhen a gummy medicant reaches the upper portions thereof and by reasonof my arrangement for maintaining upward flow in this pipe 22 themedicant is prevented from reaching the nipple 23 or small pipesconnected thereto.

After use the boiler may be quickly and easily removed from thereservoir for cleaning. To break the connections where some liquidremains in the boiler and reservoir after use, the coupling 21 is merelyelevated above the level of the liquid and the tubes 19 and 20 are thenseparated at said coupling. Now the hook 25 is placed in engagement withthe upper edge of the reservoir 6 and the hook valves I promote safetyin the operation of the device because where valves are provided thereis danger that the operator may leave one closed with consequent failureof the apparatus to replenish the boiler and destruction of the heatingelement when the liquid in the boiler is exhausted. It will now beunderstood that the extension 27, heating unit 14, cap 24 and the tube20 may be removed from the boiler to facilitate the cleansing operationor removal of the residue from the medicant.

Having described my invention what I claim is new and desire to protectby Letters Patent is:

1. A portable vaporizer comprising a reservoir open at its top, an openboiler of relatively small size having its bottom projecting below saidreservoir, connections for delivering liquid from said reservoir to saidboiler, said connections including a rising member communicating at itsupper end" with the boiler below the reservoir, and means for heatingsaid boiler to vaporize the contents thereof, said connections beingarranged to allow how by gravity from said reservoir to said boiler andto maintain the liquid in said boiler at substantially the same level asthat in said reservoir.

2. A vaporizer comprising a reservoir, a boiler supported upon saidreservoir, an upright unheated receiver for liquid communieating withsaid boiler at its upper end, connections adapted to deliver'liquid fromthe reservoir to said receiver, said connections having passagestherethrough of smaller size than the passage through said receiver, andmeans for heating the contents of said boiler to vaporize the same, saidconnect-ions being arranged to maintain the liquid in said boiler atsubstantially the same level as that in said reservoir.

3. The vaporizer specified in claim 2 in which said receiver projectsdownward from the bottom of said boiler and said connection communicateswith said receiver at a point removed from the boiler.

4:. A portable vaporizer comprising, a reservoir open at its top, aboiler supported upon said reservoir, means for heating the contents ofsaid boiler to vaporize the same and connections arranged to allow flowby I gravity from said reservoir to said boiler comprising, at least twoflexible sections normally joined by a rigid coupling and adapted to beseparated at said coupling, said sections severally communicating withthe reservoir and boiler, and means for supporting the free ends of saidsections upon the reservoir and boiler above the level of liquid thereinwhen separated at said coupling.

9 5. A vaporlzer for medicants and water comprising a reservoir forwater, a boiler for water and medicants, connections adapted to deliverwater from said reservoir to said boiler, means for heating the contentsof said boiler to vaporize the same and a cold WILLIAM (J. KOCH.

